A salt distribution device for industrialized food processing
By introducing a grinding structure of crushing rollers and collars into the spiral propulsion salt distribution device, the problem of unstable conveying caused by salt agglomeration was solved, achieving efficient crushing and accurate metering of salt, and improving the quality and safety of food processing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIUZHOU RAILWAY VOCATIONAL TECHN COLLEGE
- Filing Date
- 2025-05-30
- Publication Date
- 2026-06-30
AI Technical Summary
Existing spiral propulsion salt distribution devices are prone to salt agglomeration during food processing, leading to increased conveying resistance and metering system failure, thus failing to meet the requirements of food safety and taste uniformity.
A conveying assembly including a crushing roller and a collar was designed. By utilizing a combination structure of spiral blades and grinding ribs, it can achieve efficient crushing and accurate metering of salt clumps. The combination of large-pitch and small-pitch spiral blades ensures stable conveying and accurate metering of salt.
It improves the crushing efficiency of salt, ensures uniform delivery and accurate metering of salt, reduces fluctuations in delivery volume, and meets the requirements of food safety and taste uniformity.
Smart Images

Figure CN224422674U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of food processing technology, specifically to a salt distribution device in industrialized food processing production. Background Technology
[0002] In the industrialized food processing sector, salt, as a key seasoning and preservative, directly impacts product flavor consistency, shelf life, and food safety through precise control of its dosage. Currently, the industry widely employs spiral propulsion salt dispensing devices, which regulate the salt delivery rate by adjusting the speed and number of rotations of the spiral propeller. This solution offers advantages such as stable delivery and relatively accurate metering for granular or powdered salt, making it suitable for applications in potato chip seasoning, pickled foods, and baking.
[0003] In industrialized food processing, although the screw-propelled salt distribution device can achieve stable delivery and accurate metering of salt by controlling the speed and number of revolutions of the screw propeller, and is suitable for the distribution of granular or powdered salt, the salt in the storage container is prone to clumping due to hygroscopicity and long-term accumulation, which leads to increased conveying resistance of the screw propeller, failure of the metering system, and aggravated equipment wear, resulting in problems such as fluctuations in the amount of salt delivered and exceeding the standard deviation of the finished salt content.
[0004] Existing mechanical crushing solutions suffer from low crushing efficiency and limited crushing capacity of the screw propeller itself. Process optimization measures, such as reducing storage volume or dry air purging, have limitations such as increasing labor costs or equipment investment and being unable to crush already clumped salt. These limitations make it difficult to meet consumers' requirements for uniform food taste and food safety regulations for the accuracy of additive measurement. There is an urgent need to develop new devices with efficient anti-clumping and accurate measurement functions. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a salt distribution device for industrial food processing, which solves the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a salt distribution device for industrial food processing, comprising a storage tank, a feeding hopper, a transmission pipe, and a transmission assembly;
[0007] The feed hopper is connected to the bottom of the storage tank, the transmission pipe is horizontally arranged at the bottom end of the feed hopper and is connected to the feed hopper, and the transmission assembly is arranged inside the transmission pipe;
[0008] The transmission assembly includes a rotating shaft rotatably connected between the left and right sides of the inner wall of the transmission tube. A motor with its output end connected to the rotating shaft is provided on the right side of the transmission tube. A first spiral blade is provided on the outside of the rotating shaft, and the first spiral blade is located below the feed hopper. A crushing roller is provided on the outside of the rotating shaft.
[0009] Corresponding to the crushing roller, a collar is provided on the inner wall of the transmission pipe, and the collar is sleeved on the outside of the crushing roller;
[0010] A second spiral blade is provided on the outside of the rotating shaft and on the left side of the crushing roller.
[0011] Furthermore, the crushing roller includes a protrusion extending to the right and a cylindrical portion, wherein the protrusion and the cylindrical portion are integrally formed.
[0012] Several first grinding ribs are provided on the outer sides of both the protrusion and the cylindrical part, and the first grinding ribs on the outer side of the protrusion are spiral-shaped.
[0013] Furthermore, corresponding to the first grinding rib, a plurality of second grinding ribs are provided on the inner peripheral wall of the collar.
[0014] Furthermore, the pitch of the first spiral blade is greater than the pitch of the second spiral blade.
[0015] Furthermore, both the first spiral blade and the second spiral blade are fitted with a clearance inside the transmission tube.
[0016] Furthermore, a discharge hopper is connected to the lower side of the outer surface of the transmission tube, and the discharge hopper is located below the second spiral blade.
[0017] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0018] 1. The salt distribution device in the industrial production of this food processing has a grinding structure of crushing roller and collar that can effectively crush lumps in salt. The cooperation of the spiral first grinding rib and the second grinding rib of the protruding part can grind and crush lumps of different hardness and size, and the crushing efficiency is significantly improved.
[0019] 2. The salt distribution device in this industrial food processing production utilizes the pitch design of the first and second spiral blades, as well as their clearance fit with the transmission pipe, to achieve stable salt delivery and precise metering. The first spiral blade delivers salt rapidly with a larger pitch, while the second spiral blade precisely controls the delivery volume with a smaller pitch. Attached Figure Description
[0020] Figure 1 This is a cross-sectional structural diagram of the present invention;
[0021] Figure 2 This is a schematic diagram of the overall structure of this utility model;
[0022] Figure 3 This is a schematic diagram of the connection structure between the crushing roller and the collar of this utility model.
[0023] In the figure: 1. Storage tank; 2. Feed hopper; 3. Transmission pipe; 4. Transmission assembly; 401. Rotating shaft; 402. First spiral blade; 403. Crushing roller; 4031. Protrusion; 4032. Cylindrical part; 404. Collar; 405. First grinding rib; 406. Second spiral blade; 407. Second grinding rib. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Please see Figure 1-3 This embodiment describes a salt distribution device for industrial food processing, used to transfer salt material inside storage tank 1 and simultaneously crush clumps of salt material.
[0026] Specifically, it includes a storage tank 1, a feed hopper 2, a transmission pipe 3, and a transmission assembly 4; the feed hopper 2 is connected to the bottom of the storage tank 1, the transmission pipe 3 is horizontally arranged at the bottom end of the feed hopper 2 and is connected to the feed hopper 2, and the transmission assembly 4 is arranged inside the transmission pipe 3.
[0027] In actual setup, storage tank 1 is used to store salt, feed hopper 2 is connected to the bottom of storage tank 1, transmission pipe 3 is horizontally arranged at the bottom of feed hopper 2 and connected to feed hopper 2, and transmission component 4 is installed inside transmission pipe 3 to form a complete path for salt from storage to transmission.
[0028] In addition, the bottom of the storage tank 1 is connected to the feed hopper 2, so that the salt in the storage tank 1 can fall smoothly into the feed hopper 2 by gravity, providing a stable source of material for subsequent transmission and processing. The design of the feed hopper 2 can initially collect and guide the salt, ensuring that the salt enters the transmission pipe 3 evenly. When the transmission component 4 is working, it can transport and crush the salt in the transmission pipe 3, realizing continuous processing of the salt during the transmission process and ensuring the working efficiency of the device.
[0029] In detail, the transmission component 4 includes a rotating shaft 401 rotatably connected between the left and right sides of the inner wall of the transmission pipe 3. A motor with its output end connected to the rotating shaft 401 is provided on the right side of the transmission pipe 3. A first spiral blade 402 is provided on the outside of the rotating shaft 401. The first spiral blade 402 is located below the feed hopper 2. A crushing roller 403 is provided on the outside of the rotating shaft 401.
[0030] Corresponding to the crushing roller 403, a collar 404 is provided on the inner wall of the transmission pipe 3, and the collar 404 is sleeved on the outer side of the crushing roller 403; a second spiral blade 406 is provided on the outer side of the rotating shaft 401 and on the left side of the crushing roller 403.
[0031] In actual use, the motor drives the rotating shaft 401 to rotate. The first spiral blade 402, the crushing roller 403, and the second spiral blade 406 are all installed on the outside of the rotating shaft 401 and move synchronously with the rotation of the rotating shaft 401. The first spiral blade 402 is located below the feed hopper 2 and conveys the salt falling from the feed hopper 2 forward to the crushing roller 403; the crushing roller 403 crushes the lumps in the salt; the crushed salt is further conveyed to the discharge hopper by the second spiral blade 406 and discharged.
[0032] In more detail, the crushing roller 403 includes a protrusion 4031 protruding to the right and a cylindrical portion 4032. The protrusion 4031 and the cylindrical portion 4032 are integrally formed. A plurality of first grinding ribs 405 are provided on the outer side of both the protrusion 4031 and the cylindrical portion 4032. The first grinding ribs 405 on the outer side of the protrusion 4031 are spiral. Corresponding to the first grinding ribs 405, a plurality of second grinding ribs 407 are provided on the inner peripheral wall of the collar 404.
[0033] In actual use, the collar 404 is installed on the inner wall of the transmission pipe 3 and sleeved on the outside of the crushing roller 403, forming a grinding space between the two. When the crushing roller 403 rotates with the rotating shaft 401, the first grinding rib 405 on the outside of the protrusion 4031 guides the salt block into the space between the cylindrical part 4032 and the collar 404. The first grinding rib 405 on the outside of the cylindrical part 4032 and the second grinding rib 407 on the inner circumferential wall of the collar 404 work together to grind and crush the salt block that passes through, thereby improving the crushing efficiency and effect.
[0034] In actual setup, to further improve the accuracy of salt metering, the pitch of the first spiral blade 402 in this embodiment is greater than the pitch of the second spiral blade 406. The crushed salt continues to be conveyed forward by the second spiral blade 406. Since the pitch of the second spiral blade 406 is smaller, it can accurately meter and stably convey the crushed salt, so that the salt is evenly discharged from the discharge hopper on the lower side of the transmission pipe 3 and conveyed to the subsequent processing equipment. Throughout the process, the gap fit between the first spiral blade 402 and the second spiral blade 406 ensures the stability of salt conveying and avoids problems such as leakage and fluctuation in conveying volume.
[0035] Furthermore, the core function of the large-pitch first spiral blade 402 is "efficient conveying". Through the large pitch and high speed, it quickly pushes the salt from the feed hopper 2 to the crushing area, adapting to the strong pushing demand of agglomerated salt. The function of the small-pitch second spiral blade 406 is "precise metering". By utilizing the reduced pitch to refine the conveying volume, stabilize the particle movement, reduce the leakage, and optimize the dynamic characteristics, it conveys the crushed uniform salt to the discharge hopper at a controllable flow rate.
[0036] Furthermore, the first spiral blade 402 and the second spiral blade 406 are fitted with the inside of the transmission tube 3 with a gap, which ensures that the spiral blades can rotate smoothly and avoids leakage of salt during transmission due to excessive gap.
[0037] The working principle of the above embodiments is as follows:
[0038] (1) The salt is stored in the storage tank 1. When the device is working, the salt falls from the storage tank 1 into the feed hopper 2 under the action of gravity, and then enters the transmission pipe 3. The motor of the transmission component 4 is started, driving the rotating shaft 401 to rotate, which drives the first spiral blade 402 to rotate, and conveys the salt below the feed hopper 2 forward. During the conveying process, the lumps in the salt move to the crushing roller 403 along with the first spiral blade 402 on the outside of the protrusion 4031. The crushing roller 403 rotates with the rotating shaft 401. When the crushing roller 403 rotates with the rotating shaft 401, the first grinding rib 405 on the outside of the protrusion 4031 guides the salt block into the space between the cylindrical part 4032 and the collar 404. Under the mutual squeezing, shearing and grinding action of the first grinding rib 405 and the second grinding rib 407, the lumps are crushed into fine particles.
[0039] (2) The crushed salt continues to be conveyed forward by the second spiral blade 406. Since the pitch of the second spiral blade 406 is small, it can accurately measure and stably convey the crushed salt, so that the salt is evenly discharged from the discharge hopper on the lower side of the transmission pipe 3 and conveyed to the subsequent processing equipment. Throughout the process, the gap between the first spiral blade 402 and the second spiral blade 406 ensures the stability of the salt conveying and avoids the problems of leakage and fluctuation in conveying volume.
[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A salt dispensing ratio device in the industrial production of food processing, characterized by: It includes a storage tank (1), a feed hopper (2), a transfer pipe (3), and a transfer assembly (4); The feed hopper (2) is connected to the bottom of the storage tank (1), the transmission pipe (3) is horizontally arranged at the bottom end of the feed hopper (2) and is connected to the feed hopper (2), and the transmission component (4) is arranged inside the transmission pipe (3); The transmission assembly (4) includes a rotating shaft (401) rotatably connected between the left and right sides of the inner wall of the transmission pipe (3). A motor with its output end connected to the rotating shaft (401) is provided on the right side of the transmission pipe (3). A first spiral blade (402) is provided on the outside of the rotating shaft (401). The first spiral blade (402) is located below the feed hopper (2). A crushing roller (403) is provided on the outside of the rotating shaft (401). Corresponding to the crushing roller (403), a collar (404) is provided on the inner wall of the transmission pipe (3), and the collar (404) is sleeved on the outer side of the crushing roller (403); A second spiral blade (406) is provided on the outside of the rotating shaft (401) and on the left side of the crushing roller (403).
2. A salt proportioning device for use in the food processing industry as claimed in claim 1, wherein: The crushing roller (403) includes a protrusion (4031) protruding to the right and a cylindrical part (4032), wherein the protrusion (4031) and the cylindrical part (4032) are integrally formed. A plurality of first grinding ribs (405) are provided on the outer side of both the protrusion (4031) and the cylindrical part (4032), and the first grinding ribs (405) on the outer side of the protrusion (4031) are spiral-shaped.
3. A salt proportioning device for use in the food processing industry as claimed in claim 2, wherein: Corresponding to the first grinding rib (405), a plurality of second grinding ribs (407) are provided on the inner peripheral wall of the collar (404).
4. A salt proportioning device for use in the food processing industry as claimed in claim 1, wherein: The pitch of the first spiral blade (402) is greater than the pitch of the second spiral blade (406).
5. A salt proportioning device for use in the food processing industry as claimed in claim 1, wherein: The first spiral blade (402) and the second spiral blade (406) are both fitted with a gap inside the transmission tube (3).
6. A salt proportioning device for use in the food processing industry as claimed in claim 1, wherein: The lower side of the outer surface of the transmission tube (3) is connected to a discharge hopper, and the discharge hopper is located below the second spiral blade (406).